OptimumCS-Pro for Android

Where should I focus, what aperture value should I use? Using an arbitrary aperture value is not going to give you the sharpest image, do to defocus-blur and diffraction. Somebody has already figured this all out and has put it in very easy use app :)

Great UI in the new version

If you spend big bucks on a high resolution camera and lens, then you need this app to get the results you want. Say you are shooting an interior with a 24mm lens. You need everything in focus that falls between 5 meters and 20 meters. Where do you focus and what aperture do you use? If you guess wrong you will not get your optimum image. The answer is you focus at 8 meters and use an aperture of 5.6. And if you are using a high resolution camera like the Sony A7Rii, your results will be off the charts. Get the app.

The description of this app sounds promising, but for landscape photographers who want a deep depth of field it really does not tell you what you don't already know. Additionally, it has an arrow of where you should focus but it does not tell you what that number is, it simply just had an arrow between 10-15 feet. Not very precise when that is kind of the point of this app. If I had to do it over again I would not purchase.

This app is absolutely useless!